16380417 has 4 divisors (see below), whose sum is σ = 21840560. Its totient is φ = 10920276.

The previous prime is 16380383. The next prime is 16380437. The reversal of 16380417 is 71408361.

It is a happy number.

16380417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71408361 = 3 ⋅23802787.

It is not a de Polignac number, because 16380417 - 2⁷ = 16380289 is a prime.

It is a super-2 number, since 2×16380417² = 536636122187778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16380437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2730067 + ... + 2730072.

It is an arithmetic number, because the mean of its divisors is an integer number (5460140).

Almost surely, 2^16380417 is an apocalyptic number.

It is an amenable number.

16380417 is a deficient number, since it is larger than the sum of its proper divisors (5460143).

16380417 is an equidigital number, since it uses as much as digits as its factorization.

16380417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460142.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 16380417 is about 4047.2727854692. The cubic root of 16380417 is about 253.9656524535.

Adding to 16380417 its reverse (71408361), we get a palindrome (87788778).

The spelling of 16380417 in words is "sixteen million, three hundred eighty thousand, four hundred seventeen".